How to charge a battery. An average car battery has a capacity of around 48 amp hours which means that, fully charged, it delivers 1 amp for 48 hours, 2 amps for 24 hours, 8 amps for 6 hours and so on.
This occurs when one of the soft, gel-filled discs between the vertebrae of the spine bulges or ruptures, compressing and/or irritating the sciatic nerve. Another common cause of sciatica is muscle spasm that compresses the sciatic nerve as it travels through the muscles.
For example, a heat pack placed on your piriformis muscle may help to reduce muscle spasms that could be causing your sciatica. Cold therapy slows circulation, helping to reduce inflammation, muscle spasms, and pain. Your physical therapist will alternate between hot and cold therapies.